Masking Cap For M3 Screws, ID 2.8mm x OD 5.4mm, 19mm Long, Silicone (Gray), Pack of 10, HLAS28-2-P
SGD $4.40
The most basic masking cap, our GA series is cylindrical and able to protect the most commonly used screw hole diameters. In addition, there is a wide range of sizes to mask even holes with odd sizes.